Definition: Anapnea refers to a condition where a person's breathing rate drops significantly below their normal rate due to excessive gas exchange. This condition can be dangerous if left untreated, as it may result in hypoxia (shortness of breath) or even death if it progresses into severe cases. The detailed definition for anapnea is that "It occurs when the respiratory rate falls so low that the maximum force of inspiration falls below 10% of the adult normal heart rate."